Abstract:
The administration of access control and the support of keyword search are some issues which are important in secure cloud storage system. With the appearances of cloud computing, data owners are founded to outsource their tricky data management systems from local sites to the commercial public cloud and it is to achieve flexibility and economic savings. But to protecting data privacy, sensitive data have to be encrypted before outsourcing data, which out dated traditional data utilization based on plaintext keyword search. Consider many number of data users and documents in the cloud, and it is mandatory to allow multiple keywords in the search request and return documents in the order of their relevance to these keywords. This system design will provide an efficient traceable authorization search system for secure cloud storage, which overcomes all these limitations. Inflexible authorized keyword search, Abuse of attribute secret key, inefficient decryption.

Keywords: authorized searchable encryption, traceability, multiple keywords subset search, cloud computing.